Cap for bubble blowing



FIG. 1 is a side elevational view of a cap for bubble blowing showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a cross-sectional view taken along line 3--3 of FIG.2; and

FIG. 4 is a horizontal cross-sectional view taken along line 4--4 of FIG. 3. 

The ornamental design for a cap for bubble blowing, as shown and described. 